TOPICS: Niacin, riboflavin, pyridoxine, b6, tryptophan, dyslipidemia, ldl, hdl, hyperpigmentation, sun exposed limbs, hartnup disease, dermatitis, collar like distribution, glossitis, diarrhea, dementia, nicotinic acid, high protein diet, vitamin b3, hyperglycemia, hyperuricemia, facial flushing, prostaglandins, aspirin
